

    \filetitle{userdata}{Get or set user data in an IRIS object}{VAR/userdata}

	\paragraph{Syntax for getting user
data}

\begin{verbatim}
X = userdata(Obj)
\end{verbatim}

\paragraph{Syntax for assigning user
data}

\begin{verbatim}
OBJ = userdata(Obj,X)
\end{verbatim}

\paragraph{Input arguments}

\begin{itemize}
\item
  \texttt{Obj} {[} model \textbar{} tseries \textbar{} VAR \textbar{}
  SVAR \textbar{} FAVAR {]} - One of the IRIS objects with access to
  user data functions.
\item
  \texttt{X} {[} \ldots{} {]} - Any kind of data that will be attached
  to, and stored within, the object \texttt{OBJ}.
\end{itemize}

\paragraph{Output arguments}

\begin{itemize}
\item
  \texttt{X} {[} \ldots{} {]} - User data that are currently attached to
  the object.
\item
  \texttt{Obj} {[} model \textbar{} tseries \textbar{} VAR \textbar{}
  SVAR \textbar{} FAVAR {]} - The object with its user data updated.
\end{itemize}

\paragraph{Description}

\paragraph{Example}


